Physics
If the length of a simple pendulum is halved then its period of oscillation is

Halved
Decreased by a factor 2
Doubled
Increased by a factor 2

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Physics
Which of the following events occurred first ?

Albert Einstein propounded the General Theory of Relativity
Max Planck unveiled the Quantum Theory
Marconi first tranmitted a wireless signal
Madame Marie Curie became the first woman Nobel Prize winner

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